/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2013, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.core.joran.action;

import java.util.Properties;

import ch.qos.logback.core.joran.spi.InterpretationContext;
import ch.qos.logback.core.util.ContextUtil;
import ch.qos.logback.core.util.OptionHelper;

public class ActionUtil {

  public enum Scope {
    LOCAL, CONTEXT, SYSTEM
  };

  /**
   * Convert a string into a scope. Scope.LOCAL is returned by default.
   * @param scopeStr the string to be converted
   * @return a scope corresponding to the input string;  Scope.LOCAL by default.
   */
  static public Scope stringToScope(String scopeStr) {
    if(Scope.SYSTEM.toString().equalsIgnoreCase(scopeStr))
      return Scope.SYSTEM;
     if(Scope.CONTEXT.toString().equalsIgnoreCase(scopeStr))
      return Scope.CONTEXT;

    return Scope.LOCAL;
  }

  static public void setProperty(InterpretationContext ic, String key, String value, Scope scope) {
    switch (scope) {
    case LOCAL:
      ic.addSubstitutionProperty(key, value);
      break;
    case CONTEXT:
      ic.getContext().putProperty(key, value);
      break;
    case SYSTEM:
      OptionHelper.setSystemProperty(ic, key, value);
    }
  }

  /**
   * Add all the properties found in the argument named 'props' to an
   * InterpretationContext.
   *
   * @param ic interpretation context
   * @param props the properties to set in the context
   * @param scope scope of properties
   */
  static public void setProperties(InterpretationContext ic, Properties props,
      Scope scope) {
    switch (scope) {
    case LOCAL:
      ic.addSubstitutionProperties(props);
      break;
    case CONTEXT:
      ContextUtil cu = new ContextUtil(ic.getContext());
      cu.addProperties(props);
      break;
    case SYSTEM:
      OptionHelper.setSystemProperties(ic, props);
    }
  }

}
